Star · M2III
Sadalbari
Sadalbari is a giant star of spectral type M2III in the constellation Pegasus, 112.7 light-years from the Sun.
| Other names | μ Peg · GJ 4298 · HIP 112748 |
|---|---|
| Constellation | Pegasus |
| Distance | 112.7 light-years (34.6 pc) |
| Apparent magnitude | magnitude 3.51 |
| Absolute magnitude | magnitude 0.82 |
| Spectral type | M2III |
| Surface temperature | 4,910 K |
| Luminosity | 57.8 L☉ |
| Radius | 10.5 R☉ |
| Mass | 2.9 M☉ (estimated) |
| Right ascension (J2000) | 22h 50m 00.2s |
| Declination (J2000) | +24° 36′ 06″ |
| Space velocity (relative to the Sun) | 29.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.51). Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1913. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around Sadalbari, the Sun would look like a star of magnitude 7.52, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.